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How to avoid null checking in Java?
...n environment, although my testing has shown next to no performance impact from assertions.
Not using assertions in this case is OK because the code will just fail, which is what will happen if you use assertions. The only difference is that with assertions it might happen sooner, in a more-meanin...
How to indicate param is optional using inline JSDoc?
...
From official documentation:
Optional parameter
An optional parameter named foo.
@param {number} [foo]
// or:
@param {number=} foo
An optional parameter foo with default value 1.
@param {number} [foo=1]
...
Capturing Ctrl-c in ruby
...comes in, it raises Interrupt. Since both SystemExit and Interrupt derive from Exception, your exception handling is stopping the exit or interrupt in its tracks. Here's the fix:
Wherever you can, change
rescue Exception => e
# ...
end
to
rescue StandardError => e
# ...
end
for t...
Maintaining the final state at end of a CSS3 animation
...ion class is applied onClick, and, using keyframes, it changes the opacity from 0 to 1 (among other things).
4 Answers
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Multiline bash commands in makefile
...ig difference if you sometimes want to copy the script and run it directly from a shell prompt. You can wreak havoc on your shell instance by declaring variables, and especially modifying state with set, inside of {}. () prevents the script from modifying your environment, which is probably prefer...
How to get string width on Android?
...t = new Paint();
paint.setTextSize(20);
Typeface typeface = Typeface.createFromAsset(getAssets(), "Helvetica.ttf");
paint.setTypeface(typeface);
paint.setColor(Color.BLACK);
paint.setStyle(Paint.Style.FILL);
Rect result = new Rect();
paint.getTextBounds(str, 0, str.length(), result);
Log.i("Text di...
Replace a value if null or undefined in JavaScript
...le on JavaScript, though browser support is limited. According to the data from caniuse, only 48.34% of browsers are supported (as of April 2020).
According to the documentation,
The nullish coalescing operator (??) is a logical operator that
returns its right-hand side operand when its left...
What's the 'Ruby way' to iterate over two arrays at once
...ive you
[[1, 7], [2, 8], [3, 9], [4, 7], [5, 8], [6, 9]]
This saves you from the nil values that you'll get from just using zip
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Using do block vs braces {}
...
I used the Weirich style for years, but just moved away from this to always use braces. I don't remember to ever have used the info from the block style, and the definition is kinda vague. For example:
date = Timecop.freeze(1.year.ago) { format_date(Time.now) }
customer = Timecop...
Color in git-log
...13), you can use %C(auto) to decorate %d in the format string of git log.
From the release notes:
* "git log --format" specifier learned %C(auto) token that tells Git
to use color when interpolating %d (decoration), %h (short commit
object name), etc. for terminal output.)
...